/**
 *   Licensed to the Apache Software Foundation (ASF) under one
 *   or more contributor license agreements.  See the NOTICE file
 *   distributed with this work for additional information
 *   regarding copyright ownership.  The ASF licenses this file
 *   to you under the Apache License, Version 2.0 (the
 *   "License"); you may not use this file except in compliance
 *   with the License.  You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */

package org.apache.log4j;

/**
 * @author: baisui 百岁
 * @create: 2020-05-03 16:56
 **/
/**
 <font color="#AA4444">Refrain from using this class directly, use
 the {@link Level} class instead</font>.

 @author Ceki G&uuml;lc&uuml; */
public class Priority {

    transient int level;
    transient String levelStr;
    transient int syslogEquivalent;

    public final static int OFF_INT = Integer.MAX_VALUE;
    public final static int FATAL_INT = 50000;
    public final static int ERROR_INT = 40000;
    public final static int WARN_INT  = 30000;
    public final static int INFO_INT  = 20000;
    public final static int DEBUG_INT = 10000;
    //public final static int FINE_INT = DEBUG_INT;
    public final static int ALL_INT = Integer.MIN_VALUE;

    /**
     * @deprecated Use {@link Level#FATAL} instead.
     */
    final static public Priority FATAL = new Level(FATAL_INT, "FATAL", 0);

    /**
     * @deprecated Use {@link Level#ERROR} instead.
     */
    final static public Priority ERROR = new Level(ERROR_INT, "ERROR", 3);

    /**
     * @deprecated Use {@link Level#WARN} instead.
     */
    final static public Priority WARN  = new Level(WARN_INT, "WARN",  4);

    /**
     * @deprecated Use {@link Level#INFO} instead.
     */
    final static public Priority INFO  = new Level(INFO_INT, "INFO",  6);

    /**
     * @deprecated Use {@link Level#DEBUG} instead.
     */
    final static public Priority DEBUG = new Level(DEBUG_INT, "DEBUG", 7);


    /**
     * Default constructor for deserialization.
     */
    protected Priority() {
        level = DEBUG_INT;
        levelStr = "DEBUG";
        syslogEquivalent = 7;
    }

    /**
     Instantiate a level object.
     */
    protected
    Priority(int level, String levelStr, int syslogEquivalent) {
        this.level = level;
        this.levelStr = levelStr;
        this.syslogEquivalent = syslogEquivalent;
    }

    /**
     Two priorities are equal if their level fields are equal.
     @since 1.2
     */
    public
    boolean equals(Object o) {
        if(o instanceof Priority) {
            Priority r = (Priority) o;
            return (this.level == r.level);
        } else {
            return false;
        }
    }

    /**
     Return the syslog equivalent of this priority as an integer.
     */
    public
    final
    int getSyslogEquivalent() {
        return syslogEquivalent;
    }



    /**
     Returns <code>true</code> if this level has a higher or equal
     level than the level passed as argument, <code>false</code>
     otherwise.

     <p>You should think twice before overriding the default
     implementation of <code>isGreaterOrEqual</code> method.

     */
    public
    boolean isGreaterOrEqual(Priority r) {
        return level >= r.level;
    }

    /**
     Return all possible priorities as an array of Level objects in
     descending order.

     @deprecated This method will be removed with no replacement.
     */
    public
    static
    Priority[] getAllPossiblePriorities() {
        return new Priority[] {Priority.FATAL, Priority.ERROR, Level.WARN,
                Priority.INFO, Priority.DEBUG};
    }


    /**
     Returns the string representation of this priority.
     */
    final
    public
    String toString() {
        return levelStr;
    }

    /**
     Returns the integer representation of this level.
     */
    public
    final
    int toInt() {
        return level;
    }

    /**
     * @deprecated Please use the {@link Level#toLevel(String)} method instead.
     */
    public
    static
    Priority toPriority(String sArg) {
        return Level.toLevel(sArg);
    }

    /**
     * @deprecated Please use the {@link Level#toLevel(int)} method instead.
     */
    public
    static
    Priority toPriority(int val) {
        return toPriority(val, Priority.DEBUG);
    }

    /**
     * @deprecated Please use the {@link Level#toLevel(int, Level)} method instead.
     */
    public
    static
    Priority toPriority(int val, Priority defaultPriority) {
        return Level.toLevel(val, (Level) defaultPriority);
    }

    /**
     * @deprecated Please use the {@link Level#toLevel(String, Level)} method instead.
     */
    public
    static
    Priority toPriority(String sArg, Priority defaultPriority) {
        return Level.toLevel(sArg, (Level) defaultPriority);
    }
}
